BBC spark plug gap help
#1
Junior Member
APPRENTICE
Thread Starter
Join Date: Dec 1969
Posts: 19
BBC spark plug gap help
I am currently running .044 on NGK R44 or R45 have pro comp aluminum heads 10.5:1 comp. Accel high performance HEI distributor with accel 8.5mm plug wires. I was gapped at .050 and ran .6 slower than with current gap. Question is will I see better et with a smaller gap? Also looking to get a larger carb. Any opinions?
#3
Senior Member
RACING JUNKIE
Join Date: Jan 2012
Posts: 628
I'd say .040 but it has a lot to do with Compression ratios, Combustion Chamber configuration, and timing, as well as what fuel you're using . .
Just another one of those things that make each of our engines "a little different" . .
Just another one of those things that make each of our engines "a little different" . .
#5
Re: BBC spark plug gap help
Originally Posted by duby05
I am currently running .044 on NGK R44 or R45 have pro comp aluminum heads 10.5:1 comp. Accel high performance HEI distributor with accel 8.5mm plug wires. I was gapped at .050 and ran .6 slower than with current gap. Question is will I see better et with a smaller gap? Also looking to get a larger carb. Any opinions?
__________________
Bjuice..
"I'M YOUR HUCKLEBERRY ! "
Bjuice..
"I'M YOUR HUCKLEBERRY ! "
#9
Originally Posted by duby05
Only a few mph
__________________
Bjuice..
"I'M YOUR HUCKLEBERRY ! "
Bjuice..
"I'M YOUR HUCKLEBERRY ! "